Oil-press mat.



No. 758,574. PATENTED APR. 26, 1904.

R. F. WEEK.

OIL PRESS MAT.

I urmoumn mm mm; 20. 1902.

R0 IODEL.

WITNESSES: INVENTOR ATTORNEYS.

Tn: "cams PETERS CO:PNOYCI-UTHO., wnsnmcmw. n. c.

UNTTED- STATES Patented April 26, 1904..

PATENT OFFICE.

OIL-PRESS MAT.

SPECIFICATION forming part of Letters Patent No. 758,574, datedApril 26, 1904.

Original application filed Septeiber.l0,l90];,$eria1 No. 74,906. Divided and this application filed June 26,1902. Serial A Nil-113,265- (No model.) i

-T all'whom it may concern:

Be it known that 1, 1101mm FRANZ WERK,

; a citizen of the United States, and a resident -of New Orleans, in the parish of Orleans and State of Louisiana, have invented new and useful Improvements inOil-Press Mats, of

which the following is a full, clean-and exact description.

My invention relates to improvements in oil-press mats or cloths; and it constitutes a division of a prior application for Letters Patent of the United States, filed by me on September 10, 1901, Serial No. 74,906.

The improved mat of this-invention is characterized by an increased pliability in the warp threads or strands forming an integral part of a hair press cloth or fabric. Articles of this character are preferably made of hairwarp and hair-weft interwoven together, because hair strands afford good drainage for the oil and impart a glossy surface to the fabric, that enables the cake to be introduced with facility and the article to be stripped with ease from the compressed material. The pliability of the fabric, cloth, or mat is attained by the admixture of soft hair with long coarse hair in the warp-threads. The weftthreads of the improved mat are protected by the warp-threads against the shearing strain exerted by the pressure of the seeds, so that the mat is not liable to split in a longitudinal direction, and at the same time the mat is capable of folding longitudinally at any line without breaking. The selvage of the mat presents a yielding cushion, which prevents the article from giving way under pressure and minimizes unraveling of the threads.

The invention consists of an oil-press mat comprising warp-threads and weft-threads, both composed of long animal-hair, said Warpthreads consisting of hard, stilf, and coarse hair mixed with soft pliable hair and the weftthreads consisting of soft pliable hair, said Warp-threads exceeding in number per square inch the weft-threads and disposed in close proximity to each other to conceal and protect the weft-threads, the warp-threads forming the selvage consisting of soft pliable hair and the said weft-threads of soft pliable hair being thicker than the said warp-threads.

Reference is to be had tothe accompanying drawings, forming a part of this specification, 1n which similar characters of reference indicate corresponding parts in both the figures. Figurel is a plan view of an oil-press cloth constructed in accordance with this invention,

and Fig. 2 is a longitudinal section thereof on the line 2 2 of Fig. 1.

The fabric of the present invention is necessarily made of animal-hair; and it consists of warp-threads A B in-the body portion and at the selvage, respectively, of the fabric and the weft-threads C. which are interwoven with said warp-threadsin a way to be concealed and protected thereby. To secure the desired flexibility of the fabric in a transverse direction, I employ warp-threads A, which consist of hard, stiff, and coarse hair mixed with soft pliable hair. The two kinds of hair are preferably quite long, and they are mixed together in the proper proportions, afterwhich the hairs are twisted or spun together, so as to secure a strand or thread of the proper length and thickness. The warp-threads C are composed of long animal-hair, which is soft and pliable, and this hair after having been selected and prepared in a suitable way is twisted and spun to secure a strand or thread having the proper length. I prefer to make the weft-threadsC/of increased thickness as compared with the warp-threads A B in the body and selvage of the fabric, the warp-threads B which are to be used'in making the selvage of the fabric consisting of soft pliable hair which is spun in a manner similar to the threads of the weft C.

After preparing the-threads or strands the fabric is woven by arranging the warp A B parallel with each other and in the same transverse plane, while the weft C is arranged transversely across the warp-threads in a manner to be interlaced therewith. The warpthreads through the body portion of the selvage greatly exceed the number of the weftthreads, and I prefer to employ from five to eight times as many of the Warp-threads per square inch as the weft-threads, thus making the warp-threads afford the desired protection to the weft-threads. threads made of soft hair and of increased The use of the weft-- thickness as compared with the warp-threads makes the weft threads afford a desirable cushion to the warp-threads, thus reducing the liability of the warp-threads to cut or sever the weft when the mat is exposed to the pressure of a press. The employment of soft hair in the warp-threads secures a greater degree of pliability in the fabric than can be attained by making the warp and weft of hard coarse hair, and at the same time the mat possesses good drainage qualities. After it shall have been in use a short time the surface of the mat becomes glossy, the latter being advantageous because it facilitates the introduction of the formed cake into the press and enables the mat to be stripped with ease and facility from the compressed material. By protecting the weft-threads, owing to their being inclosed by the warp-threads, the seeds cannot penetrate and injure the weft-threads, and at the same time the mat can be folded longitudinally without breaking or giving way in any of its threads.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. An oil-press mat or cloth made entirely of long animal hair and consisting of Warp and weft threads, said weft-threads being composed exclusively of soft, pliable hair and the warp threads greatly exceeding the weftthreads in number per square inch.

2. An oil-press mat, consisting of warpthreads and Weft-threads, both composed of long animal hair, said warp-threads consisting of hard, stiff and coarse hair mixed with soft pliable hair, and the weft-threads consisting of soft pliable hair; said warp-threadsexceeding in number per square inch the weftthreads, and arranged in close proximity to each other so as to conceal and protect the weft-threads; the warp-threads forming the selvage consisting of soft pliable hair, and said weft-threads of soft pliable hair being thicker than the warp-threads.

3. An oil-pressmat consisting of hair warpthreads and hair weft threads, the warpthreads being composed of hard, stiff and coarse hair mixed with soft, pliable hair, and the weft-threads being composed of soft, pliable hair, the selvage of the mat being formed by warp-threads of soft, pliable hair.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ROBERT FRANZ. WERK.

Witnesses:

PHILIP PLoPP, JOHN HEINRICH. 

